The members of each relationship group
below (Groups No. 100 through No. 115) are likely as a rule
to share common Brown ancestors with fellow group members
inside a "genealogical" time frame, that is, approximately since
the widespread introduction of surnames in western Europe during the 15th
century.

These groupings are strictly
tentative, however, and they will necessarily be revised from time
to time. What's more, the identification of specific common ancestors for any group will generally depend more
upon conventional "paper" genealogy than upon additional DNA
testing.

To the extent that there are
mistakes in the groupings, we have tried to err on
the side of inclusiveness by using selection criteria broader than
those employed by many other surname-tracing projects. In technical terms, we
view a false negative as worse than a false positive, so we prefer to err
toward the latter. One implication is that some of this project's Groups will
almost surely lose members -- or even "break down" -- if all their
members should eventually upgrade from 12 to 25 or more markers. Such
outcomes are most probable for Groups equal or close to the so-called
"Atlantic Modal Haplotype" (AMH), as for example Group Nos. 5, 15,
18, 20, 56, 59, 87, 88 and 89. For more information on the AMH issue, see the
discussion under Group No. 20.

Criteria for Determining Relationship Groups:

For Haplogroup R1b and its subclades: Members must match 12/12 on the first 12 markers, at least
23/25 on the first 25 markers, or at least 33/37 on the first 37 markers.

For
all other Haplogroups: Members must match at
least 11/12 on the first 12 markers, at least 22/25 on the first 25 markers,
or at least 33/37 on the first 37 markers.

Note on Modal Values within
Groups: In cases where a specific marker's modal
value is undefined, a value is substituted from among the modal values for
all project members with the same haplogroup.

(The
STR Markers with Orange Headingsare believed to change or
"mutate" more rapidly than the others.)

Kit No.

Name

H

STR Marker Names (DNA Y-Chromosome Short Tandem Repeats or "DYS")

a

3

p

9

l

4

o

G

3

3

g

o

3

3

A

Y

Y

9

9

4

r

r

3

3

8

8

4

4

4

4

4

4

T

C

C

C

C

5

5

0

4

4

o

3

3

3

8

8

4

3

4

9

3

9

4

5

5

4

4

4

4

4

4

6

6

6

6

4

A

A

A

4

6

5

5

D

D

4

4

5

5

S

S

5

5

6

4

6

5

4

1

1

5

5

4

4

5

4

4

4

5

4

6

5

4

5

6

4

5

u

9

9

1

9

5

5

2

8

3

-

9

-

5

9

9

5

5

4

3

4

4

4

4

4

4

6

H

2

2

5

0

7

7

Y

Y

4

3

3

7

1

1

9

3

4

7

S

1

2

3

3

5

9

3

9

3

5

4

8

2

4

1

6

8

7

4

9

6

p

3

0

9

1

a

b

6

8

9

1

2

2

8

a

b

5

4

7

7

8

9

a

b

c

d

0

4

a

b

6

7

6

0

a

b

2

8

1

8

a

b

0

7

1

2

1

1

5

a

b

7

4

6

0

4

0

4

1

0

6

7

8

7

2

0

2

5

Group
No. 100

Marker
No. (Orange = Fast Mutator)

H'group

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

Modal
Values for this Group

I1 (M253)

13

23

14

10

13

15

11

13

11

12

11

28

15

8

9

8

11

23

16

19

28

11

14

14

16

10

10

19

21

14

14

17

19

36

37

12

10

11

8

15

15

8

11

10

8

9

10

12

22

24

12

10

12

12

16

8

13

25

20

13

13

11

12

11

11

12

11

145125

Wiilliam Hedrick Brown

I1 (M253)

13

23

14

10

13

15

11

13

11

12

11

28

15

8

9

8

11

23

16

19

28

11

14

14

16

10

10

19

21

14

14

17

19

34

37

12

10

11

8

15

15

8

11

10

8

9

10

12

22

24

12

10

12

12

16

8

13

26

20

13

13

11

12

11

11

12

11

348232

John Kenneth
Brown

I1 (M253)

13

23

14

10

13

15

11

13

11

12

11

28

15

8

9

8

11

23

16

19

28

11

14

14

16

10

10

19

21

14

14

17

19

36

37

12

10

11

8

15

15

8

11

10

8

9

10

12

22

24

12

10

12

12

16

8

13

25

20

13

13

11

12

11

11

12

11

N42784

Paul Preston Brown

I1 (M253)

13

23

14

10

13

15

11

13

11

12

11

28

15

8

9

8

11

23

16

19

28

11

14

14

16

10

10

19

21

14

14

17

19

36

37

12

10

11

8

15

15

8

11

10

8

9

10

12

22

24

12

10

12

12

16

8

13

25

20

13

13

11

12

11

11

12

11

Group
No. 101

Marker
No. (Orange = Fast Mutator)

H'group

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

Modal
Values for this Group

R1b1a2

13

25

15

11

11

15

11

12

11

13

13

30

17

9

10

11

11

25

15

19

29

15

16

16

17

11

11

19

23

16

15

17

18

35

37

12

12

11

9

15

16

8

10

10

8

11

10

12

23

23

16

10

12

12

14

8

12

23

20

13

12

11

13

11

11

12

12

143704

Robert Hugh
Brown (#2)

R1b1a2

13

25

15

10

11

15

11

12

11

13

13

30

17

9

10

11

11

25

15

19

29

15

16

16

17

11

11

19

23

16

15

17

18

35

37

12

12

11

9

15

16

8

10

10

8

11

10

12

23

23

16

10

12

12

14

8

12

23

20

13

12

11

13

11

11

12

12

134417

James William
Brown (#2)

R1b1a2

13

25

15

11

11

15

11

12

11

13

13

30

17

9

10

11

11

25

15

19

29

15

16

16

17

11

11

19

23

16

15

17

18

35

37

12

12

11

9

15

16

8

10

10

8

11

10

12

23

23

16

10

12

12

14

8

12

23

20

13

12

11

13

11

11

12

12

Group
No. 102

Marker
No. (Orange = Fast Mutator)

H'group

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

Modal
Values for this Group

R1b1a2

13

24

14

10

11

14

12

12

12

13

13

30

17

9

10

11

11

25

15

19

31

15

15

17

18

11

11

19

24

17

14

18

16

37

38

12

12

144980

Mark T.
Brown

R1b1a2

13

24

14

10

11

14

12

12

12

13

13

30

17

9

10

11

11

25

15

19

31

15

15

17

18

11

11

19

24

17

14

18

16

37

38

12

12

000000

Anonymous
Brown*****

R1b1a2

13

24

14

10

11

14

12

12

12

13

13

30

B1303

Max Brown

R1b1a2

13

24

14

10

11

14

12

12

12

13

13

30

17

9

10

11

11

25

15

19

31

15

15

17

18

11

11

19

24

17

14

18

16

37

38

12

12

11

12

Note: The
"Anonymous Brown" in this group is a man tested by FTDNA who hasn't
yet joined the Brown DNA Study. He is also listed below in Group No. 106
since if he ever should upgrade, he might match either Group No. 102 or Group
No. 106 (but almost surely not both).

Group
No. 103

Marker
No. (Orange = Fast Mutator)

H'group

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

Modal
Values for this Group

G

14

22

15

10

14

14

11

13

12

12

11

29

16

8

9

11

11

23

16

22

34

12

13

13

14

10

11

20

20

15

13

16

18

36

37

11

10

11

8

15

16

8

11

10

8

11

10

14

21

22

14

10

12

12

15

8

12

22

22

20

12

11

13

11

11

11

11

16533

Robby Lynn Brown

G

14

22

15

10

14

14

11

13

12

12

11

29

16

8

9

11

11

23

16

22

34

12

13

13

14

10

11

20

20

15

13

16

18

36

37

11

10

11

8

15

16

8

11

10

8

11

10

14

22

22

14

10

12

12

15

8

12

22

22

20

12

11

13

11

11

11

11

148419

Richard Allen Brown #1

G

14

22

15

10

14

14

11

13

12

12

11

29

16

8

9

11

11

23

16

22

34

12

13

13

14

10

11

20

20

15

13

16

18

36

37

11

10

198382

(Mr.) Renee L. Brown

G

14

22

15

10

14

14

11

13

12

12

11

29

16

8

9

11

11

23

16

22

34

12

13

13

14

10

11

20

20

15

13

16

18

35

37

11

10

11

8

15

16

8

11

10

8

11

10

14

21

22

14

10

12

12

14

8

12

22

22

20

12

11

13

11

11

11

11

147158

William
Hutcheson 'Bill' Brown

G

14

22

15

10

14

14

11

13

12

12

11

29

16

8

9

11

11

23

16

22

33

12

13

13

14

10

11

20

20

15

13

16

18

36

37

11

10

Group
No. 104

Marker
No. (Orange = Fast Mutator)

H'group

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

Modal
Values for this Group

R1b1a2

13

23

14

11

11

15

12

12

12

14

13

30

15

9

10

10

12

25

15

19

30

15

15

17

17

11

10

19

23

16

15

19

17

35

40

12

10

138555

Barto A.
Browning

R1b1a2

13

23

14

11

11

15

12

12

12

14

13

30

15

9

10

10

12

25

15

19

30

15

15

17

17

11

10

19

23

16

15

19

17

35

40

12

10

000000

Anonymous
Browning*****

R1b1a2

13

23

14

11

11

15

12

12

12

14

13

30

147066

James Clinton
Browning

R1b1a2

13

23

14

11

11

15

12

12

12

14

13

30

15

9

10

10

12

25

15

19

30

15

15

17

17

11

10

19

23

16

15

19

17

35

40

12

10

204128

Mack T.
Browning

R1b1a2

13

23

14

11

11

15

12

14

12

14

13

30

15

9

10

10

12

25

15

19

30

15

15

17

17

11

10

19

23

16

15

19

17

35

41

12

10

000000

Anonymous
Browning*****

R1b1a2

13

23

14

11

11

15

12

14

12

14

13

30

15

9

10

10

12

25

15

19

30

15

15

17

17

K9NEP**

Gordon K.
Browning

R1b1a2

13

23

14

11

11

15

12

14

12

13

13

29

15

10

12

25

19

30

15

15

17

17

11

10

19

23

10

Note 1: Although no. K9NEP has a
different numerical value for the 12th marker, it's not considered a genetic
difference since the value of

since the value of the 10th marker (DYS
389-1) is "embedded" in the value of the 12th marker (DYS 389-2).

Note 2: The "Anonymous
Brownings" in Group No. 104 are two men tested by FTDNA who haven't
joined the Brown DNA Study.

Group
No. 105

Marker
No. (Orange = Fast Mutator)

H'group

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

Modal
Values for this Group

I1

13

22

14

10

13

14

11

14

12

12

11

28

14

8

9

8

11

24

16

20

30

12

15

16

16

10

10

19

21

14

14

16

19

34

37

12

10

2715

Kenneth Clyde Brown

I1

13

22

14

10

13

14

11

14

11

12

11

28

14

8

10

8

11

24

16

20

30

12

15

16

16

10

10

19

21

14

14

16

19

34

37

12

10

000000

Anonymous Brown*****

I1

13

22

14

10

13

14

11

14

11

12

11

28

N57751

Stephen Donald
'Steve' Brown

I1

13

22

14

10

13

14

11

14

12

12

11

28

14

8

9

8

11

24

16

20

30

12

15

16

16

10

10

19

21

15

14

16

17

34

37

13

10

N52294

James Eedy
Brown

I1

13

22

14

10

13

15

11

14

12

12

11

28

000000

Anonymous
Browns*****

I1

13

22

14

10

13

14

11

14

12

12

11

28

Note:
The "Anonymous Browns" listed last in this group are four men
tested by FTDNA who haven't yet joined the Brown DNA Study. They are also
listed above in Group No. 8, as as is no. N91688, since upgrading to 25 or 37
markers might show that one or more of these men matches that Group rather
than Group No. 105.

Group
No. 106

Marker
No. (Orange = Fast Mutator)

H'group

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

Modal
Values for this Group

R1b1a2a1a1b4

13

24

14

10

11

14

12

12

12

13

13

30

17

9

10

11

11

24

15

19

30

15

16

17

17

11

10

19

23

16

17

18

19

36

39

12

12

11

9

15

16

8

10

10

8

10

10

12

22

23

15

11

12

12

15

8

12

22

20

14

12

11

13

12

11

12

11

125138

James (nmn)
Brown

R1b1a2a1a1b4

13

24

14

10

11

14

12

12

12

13

13

30

17

9

10

11

11

24

15

19

30

15

16

17

17

11

10

19

23

16

17

18

19

36

39

12

12

11

9

15

16

8

10

10

8

10

10

12

22

23

15

11

12

12

15

8

12

22

20

14

12

11

13

12

11

12

11

125139

Roderick
Angus 'Rory' Brown

R1b1a2a1a1b4

13

24

14

10

11

14

12

12

12

13

13

30

17

9

10

11

11

24

15

19

30

15

16

17

17

11

10

19

23

16

17

18

19

36

39

12

12

11

9

15

16

8

10

10

8

10

10

12

22

23

15

11

12

12

15

8

12

22

20

14

12

11

13

12

11

12

11

156505

Greig
Brown

R1b1a2a1a1b4

13

24

14

10

11

14

12

12

12

13

13

30

18

9

10

11

11

26

15

19

30

15

15

17

17

11

12

19

24

15

14

18

18

37

38

12

12

000000

Anonymous
Brown*****

R1b1a2a1a1b4

13

24

14

10

11

14

12

12

12

13

13

30

Note
1: The "Anonymous Brown" here has been tested by FTDNA but hasn't
yet joined the Brown project. He is also listed above in Group No.102 since
if he ever should upgrade, he might match either Group No. 102 or no. 106
(but almost surely not both).

Note
2: It's not likely that nos. 125138-39 are closely related to no. 156505, as
shown by the mismatches on markers 13 thru 37. So "Anonymous" holds
this group together, because an upgrade might show either that he matches
nos. 125138-39, or that he matches no. 156505. But he won't match both, nor
is it likely that he could form a "bridge" between them.

Group
No. 107

Marker
No. (Orange = Fast Mutator)

H'group

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

Modal
Values for this Group

R1b1a2

13

24

14

10

13

14

12

12

12

13

13

29

15

9

10

11

11

25

15

19

30

15

16

16

17

11

10

19

23

15

15

18

19

33

38

13

12

N55439

Jonathan
Michael Brown

R1b1a2

13

24

14

10

13

14

12

12

12

13

13

29

228917

Ashby Brown

R1b1a2

13

24

14

10

13

14

12

12

12

13

13

29

16

9

10

11

11

25

15

19

29

15

16

20

17

11

11

19

23

15

15

17

17

37

38

13

12

207128

Robert James
Brown #2

R1b1a2

13

24

14

10

13

14

12

12

12

13

13

29

16

9

10

11

11

25

15

19

29

15

16

20

17

11

11

19

23

15

15

17

17

37

38

13

12

222042

C. J. Brown

R1b1a2

13

24

14

10

13

14

12

12

12

13

13

29

16

9

10

11

11

25

15

19

29

15

16

20

17

11

11

19

23

15

15

17

17

37

38

13

12

279619

M. Richard
Brown

R1b1a2

13

24

14

10

13

14

12

12

12

13

13

29

15

9

10

11

11

26

15

19

30

15

16

16

17

11

10

19

23

15

15

18

16

33

38

13

12

216102

T. C. Brown

R1b1a2

13

24

14

10

13

15

12

12

12

13

13

29

15

9

10

11

11

27

15

19

30

15

16

17

17

11

10

19

23

15

15

18

19

33

38

13

12

134861

Michael H.
Brown

R1b1a2

13

24

14

10

13

14

12

12

12

13

13

29

15

9

10

11

11

26

15

19

30

15

16

16

16

11

10

19

23

15

15

18

19

33

38

13

12

134862

Randy
Brown

R1b1a2

13

24

14

10

13

14

12

12

12

13

13

29

15

9

10

11

11

26

15

19

30

15

16

16

17

11

10

19

23

15

15

18

19

33

38

13

12

26908

Alvin E.
Brown

R1b1a2

13

24

14

10

13

14

12

12

12

13

13

29

15

9

10

11

11

27

15

19

30

15

16

16

17

11

10

19

23

15

15

18

19

33

38

13

11

Note:
It appears that nos. 207128, 222042 & 228917 aren't closely related to
the last five men listed in Group No. 107. But they are included here
tentatively because if no. N55439 ever should upgrade to 37 markers, he might
match them, he might match the last four men, or he might serve as a bridge
between 207128/222042/228917 and the last four.

Group
No. 108

Marker
No. (Orange = Fast Mutator)

H'group

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

Modal
Values for this Group

I2b1

14

23

15

10

14

16

11

13

11

14

12

32

14

8

10

11

11

25

14

20

27

11

14

14

16

11

10

19

21

14

14

16

18

38

39

12

10

N21617

Edward
Francis Brown

I2b1

14

23

15

10

13

16

11

13

11

14

12

32

14

8

10

11

11

25

14

20

27

11

14

14

16

10

10

19

21

14

14

16

18

38

39

12

10

35845

John Philip
Braun

I2b1

14

23

15

10

14

16

11

13

11

14

12

32

14

8

10

11

11

25

14

20

27

11

14

14

16

11

10

19

21

14

14

16

18

38

39

12

10

12

8

16

16

8

11

10

8

10

10

12

21

21

15

11

12

12

14

9

14

26

20

12

13

12

12

12

12

12

11

000000

Anonymous
Brauns*****

I2b1

14

23

15

10

14

16

11

13

11

14

12

32

Note: The
"Anonymous Brauns" in this group are three men tested by FTDNA who
haven't yet joined the Brown DNA Study.

***Indicates "null" or no result.
Such cases are retested multiple times to confirm. The underlying science is
still unsettled as to when these readings are caused by true deletions, as
opposed to being caused by imperfect testing techniques. Regardless of cause,
however, mutations that lead to null readings are normally passed to
descendants just as are other mutations, meaning that related male lineages
such as a father and his son will usually share a null value. Therefore a
null value can generally be as useful as any other value for genealogical
purposes.

****
Ancestral name used instead of participant's name.

*****
Indicates a Brown-surnamed man tested by FTDNA who hasn't yet joined the
Brown DNA Study